<%@ page import="java.util.Map" %>
<%@ page import="java.util.HashMap" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %><%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2021/12/7 0007
  Time: 11:15
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<%
//    Map map1=new HashMap();
//    map1.put("1",1);
//    map1.put("2",2);
//    map1.put("3",3);
//    Map map2=new HashMap();
//    map2.put("1",1);
//    map2.put("2",2);
//    List <Map>list=new ArrayList<Map>();
//    list.add(map1);
//    list.add(map2);
//    Map map3=new HashMap();
//    map3.put("map3",list);
//
//    out.println(map3.get("map3"));


%>
</body>
</html>
